Product description
Description: Spring Steel Flat Bar
Thickness (mm): 5-30mm
Width (mm): 30-300m
Length (mm): According to Request
GB: 55CrMnA
ASTM: 5155
JIS: SUP9
EN: 55Cr3
C: 0.52-0.60
Si: 0.17-0.35
Mn: 0.65-0.95
Cr: 0.65-0.95
P: 0.025
S: 0.025
HB: 321
